rs780305056

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PP3_ModerateBS2

The NM_002471.4(MYH6):​c.3476C>T​(p.Thr1159Met) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000028 in 1,606,342 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T1159A) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

MYH6
NM_002471.4 missense

Scores

14
4

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5

Conservation

PhyloP100: 9.63

Publications

3 publications found
Variant links:
Genes affected
MYH6 (HGNC:7576): (myosin heavy chain 6) Cardiac muscle myosin is a hexamer consisting of two heavy chain subunits, two light chain subunits, and two regulatory subunits. This gene encodes the alpha heavy chain subunit of cardiac myosin. The gene is located approximately 4kb downstream of the gene encoding the beta heavy chain subunit of cardiac myosin. Mutations in this gene cause familial hypertrophic cardiomyopathy and atrial septal defect 3. [provided by RefSeq, Feb 2017]
MYH6 Gene-Disease associations (from GenCC):
  • hypertrophic cardiomyopathy 14
    Inheritance: AD Classification: STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia, Laboratory for Molecular Medicine
  • Keppen-Lubinsky syndrome
    Inheritance: AD Classification: MODERATE Submitted by: Illumina
  • familial isolated dilated cardiomyopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • atrial septal defect 3
    Inheritance: AD Classification: LIMITED Submitted by: G2P
  • dilated cardiomyopathy
    Inheritance: AD Classification: LIMITED Submitted by: ClinGen
  • hypertrophic cardiomyopathy
    Inheritance: AD Classification: LIMITED Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.931
BS2
High AC in GnomAd4 at 5 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002471.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MYH6
NM_002471.4
MANE Select
c.3476C>Tp.Thr1159Met
missense
Exon 26 of 39NP_002462.2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MYH6
ENST00000405093.9
TSL:5 MANE Select
c.3476C>Tp.Thr1159Met
missense
Exon 26 of 39ENSP00000386041.3
MYH6
ENST00000968262.1
c.3509C>Tp.Thr1170Met
missense
Exon 26 of 39ENSP00000638321.1
MYH6
ENST00000968257.1
c.3476C>Tp.Thr1159Met
missense
Exon 26 of 39ENSP00000638316.1

Frequencies

GnomAD3 genomes
AF:
0.0000330
AC:
5
AN:
151304
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000737
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000127
AC:
3
AN:
237042
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000294
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000189
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000275
AC:
40
AN:
1455038
Hom.:
0
Cov.:
34
AF XY:
0.0000304
AC XY:
22
AN XY:
723942
show subpopulations
African (AFR)
AF:
0.0000300
AC:
1
AN:
33358
American (AMR)
AF:
0.0000225
AC:
1
AN:
44408
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26074
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39628
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86020
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
50594
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4308
European-Non Finnish (NFE)
AF:
0.0000333
AC:
37
AN:
1110618
Other (OTH)
AF:
0.0000167
AC:
1
AN:
60030
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
3
5
8
10
13
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000330
AC:
5
AN:
151304
Hom.:
0
Cov.:
31
AF XY:
0.0000271
AC XY:
2
AN XY:
73816
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41076
American (AMR)
AF:
0.00
AC:
0
AN:
15188
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3464
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5160
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4744
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10496
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000737
AC:
5
AN:
67874
Other (OTH)
AF:
0.00
AC:
0
AN:
2074
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.515
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000340
ExAC
AF:
0.00000832
AC:
1

ClinVar

ClinVar submissions as Germline
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Cardiovascular phenotype (1)
-
1
-
Dilated cardiomyopathy 1EE;C2750467:Hypertrophic cardiomyopathy 14;C3279790:Atrial septal defect 3;C3279791:Sick sinus syndrome 3, susceptibility to;C3495498:Hypertrophic cardiomyopathy 1 (1)
-
1
-
Hypertrophic cardiomyopathy (1)
-
1
-
Hypertrophic cardiomyopathy 14 (1)
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.60
BayesDel_addAF
Pathogenic
0.22
D
BayesDel_noAF
Pathogenic
0.16
CADD
Pathogenic
26
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.72
D
Eigen
Pathogenic
0.92
Eigen_PC
Pathogenic
0.78
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.97
D
M_CAP
Pathogenic
0.81
D
MetaRNN
Pathogenic
0.93
D
MetaSVM
Pathogenic
0.98
D
MutationAssessor
Pathogenic
3.3
M
PhyloP100
9.6
PrimateAI
Uncertain
0.77
T
PROVEAN
Uncertain
-3.5
D
REVEL
Pathogenic
0.83
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.77
MutPred
0.69
Gain of catalytic residue at V1161 (P = 5e-04)
MVP
0.98
MPC
3.1
ClinPred
0.96
D
GERP RS
4.3
Varity_R
0.37
gMVP
0.72
Mutation Taster
=20/80
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs780305056; hg19: chr14-23859522; API